Home / 31,404.97-43,339.08-17,257.78

Finding the Fourth Proportional to 31,404.97, 43,339.08 and 17,257.78

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Solution

The fourth proportional to 31,404.97, 43,339.08 and 17,257.78 is: 23,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,404.97 : 43,339.08 = 17,257.78 : x
  2. Step 2: Convert to fraction form
    31,404.97/43,339.08 = 17,257.78/x
  3. Step 3: Cross multiply
    31,404.97x = 43,339.08 × 17,257.78
  4. Step 4: Simplify right side
    31,404.97x = 747,936,308.04
  5. Step 5: Solve for x
    x = 747,936,308.04/31,404.97
  6. Step 6: Final answer
    x = 23,815.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.